Share Module 8 Semester Review 4/30/24
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True or False: The Null Hypothesis is a statement there is no significant difference or effect in the research observations.
True
What is a Parameter?
A sample Statistic
A numerical characteristic of a population
A value below which a given percentage of observations fall
A value that divides a list of numbers into quarters
What does a p-value represent in statistical tests?
The variance in the sample population
The sample mean
The probability of the obtained results when null is true
A significance level
True or False. When p > α, you should fail to reject the Null hypothesis.
True
Since p (.04) < a (.05), p < α, do we accept or reject the null hypothesis?
We reject the null hypothesis
For comparing the means of two separate groups, which is the best test?
Independent T-test
Regression
ANOVA
Chi-squared
What does correlation between two variables mean?
None of the answers
A variable that is continuous
The Extent to which 2 or more variable fluctuate together
Two variables that can take on the same value
True or False: A variable is a factor that can vary or change?
True
True or False: A Chi-square test assesses the differences between two categorical variables?
True
What is a cluster sample?
A sample from a non-normal distribution
Sampling technique where population is divided into clusters
A very large sample size
Samples from various populations
What is a Confidence Interval?
Range of values likely to Include parameter of interest
All of the above
95% confidence interval, means 95 out of 100 times
Provides a specified level of confidence for an estimate
True or False: A parametric test is based on a normal distribution?
True
What is a correlation co-efficient?
The two variables are the independent and dependent
Indicates how closely two variables are linked
All of the answers
Has values from +1 to -1
What type of test is used to find an association between two categorical variables?
Regression
Paired t test
Chi-Squared
ANOVA
What type of test would be used to find a difference in the same individuals at two different times/conditions
Time Series
Correlation
Paired T test
ANOVA
What are examples of a categorical variable?
All the answers
Education level
Animal Species
Occupation
